Hose-coupling



Y W. E. SANDERSON.

HosE couPuNG.

` APPLICATION FILED JULY 7| I9I9. 1,360,588. Patented NOV. 30, 1920.y

ATTORNEY..

lNr/ENTOR WITNESS I fz @C MMMW 4 l UNiTED STATES PATENT oFFlcE.

WILLIAM n. sANnEnsoN, or Los ANGELS, CALIFORNIA.

HOSE-COUPLING. n h v l/ 'o all whom it may concer/n,

- invention:

Be it knownV that I, WILLIAM EVSANDER- soia, a citizen of the United States, residing at Los Angeles, in the'countyof lLos Angeles and State Aof California, have invented a new and useful Hose-Coupling, of which the following isa specication.

This invention relates to couplings or connections for connecting hose to pipes,

pneumatic tools and the like, and an object of the invention, in, general, isto produce a coupling which cannot befaccidentally disconnected by the pressure of the fluid in the hose.` v

Another object is to so construct thecoupling that the pressure of the fluid is uti lized to Yforce the hose-engaging members into hose-,engagingposition and tov maintain them in such position. f 1 y Q,

Another object is to produce a `coupling of comparatively low manufacturing cost-l and one that is reliable in operation.

Otherobjects and advantages will ap-f pear in the subjoined detailed description. The accompanying drawings illustratek the Figure 1 is a longitudinal mid section of a coupling embodying the'invention, a fragment of hose also being shown and said hose being partly in section. Fig. Qis a sectional elevation on Aline indicated by mZ-wz, Fig. 1.

Fig. y3 is alongitudinal mid sectionof a a modified form ofthe invention, a fragment of hose being alsov shownand saidhose befA ing partly in section. l

Fig. 4 is a sectional elevationhonillne in- Vldicated 'by m-m4, Fig. 3;

l 2 at one endffor connection'withl thecom- There is provided a tubular member 1 forming a nipple and having screw-threads pressed fluid supply line or .to a fluid-operated tool such, for example, as a pneumatic riveter, Vha'mmerLo'r drill. The member 1- is also adapted for connection with'a hosev 3 which is slipped over'the member y1 as clearly shown in the drawings. 'f

The member 1 is provided with one or Pivoted in the slots 4 kby pivots 5' areh'oseengaging members inthe form of dogs 6 having their outer ends more or less pointed as indicated at 7. The Ldogs are'soconstructed and mounted that when they* are Specification of Letters Patent. Patented NOV, 30, 1920, Appucation mea July 7, 1919. serial N5. 309,196..

turned intov alinement with the slots 4 theyrwhich the fluid flows, beveledV as indicated at 9 so kas tomaximize the area `of the face upon which theluid acts to move the bush- Flow referring more particularly tothe form of the invention shown in Figs. l and 2,y the bushing 8 is adapted to engage the outer faces 10 of the innerendsfof the dogs r6, said outerfaces extending aslant relatively to the longitudinal axis of the bushing. kThe end ofthe bushing 8 which engages the dogs 1s provlded with aninternal tapered face 11 so that the dog-engaging end of the bushing forms a wedge adapted to wedge between the slots4 and the dogs 1() to `force the innerends of said dogsinwa-rdlv to thereby move the n outer endsof said dogs outwardly into' engagement with the hose The dogs 10 penetrate or press into the 'hose 3 to aslight depth so that forcing of the hose from the member 1 in a direction opposite to the flow offluid through the hose and member 1 is impossible.

Iny they form l of vthefinventi'on 'shown in Figs.` 1 and `2,-when the dogs 10 are in alineafzien so as not to en'gagefthe hose 3.*the inner wardlv bevond .thefinner face ofthe member y1 in order that, whenithe bushing 8 is propelledbvthe fluidin the direction yof the arrow a in Fig'. 1,'the forwardend of the bushing "will wedge betweenvthe` dogs andthe member 1- to force the outer ends ofthe dogs outwardly into the hose 3.

With the form of theinvention shown in Figsland 2 it mav beassumed that` the member 1 is screwthreaded into the machine which is to be operated bv .thefluidor into any member or bodv which is to be supplied with Huid under pressure,-and that the hose 3 extends to a ysuitable lsource of supply of said fluid. Thus the flow of the fluid will be inthe direction of the arrow a so as to propel `the bushingriny the appropriate -direction yto "ment with the slots in their retracted po-` e bers 1 may be turn the inner ends of the dogs 10 in the direction of flow ot the tluid. 1n some instances it is desirable that the inner ends of the dogs 10 be turned in a directionopposite .to that of the flow of the fluid and to provide Jtor this a construction such as that shown wardly beyond the inner face of the member 1, thus allowing the bushing S toslide past the dogs 6 so as to engage the inner ends of dogoperating` members in the form of levers 12 which `are pivoted at 13 in the slot 1.v The outer ends o1 the levers 12 are adapted to engage the slanting faces 10 of the'inner ends of the dogs G so as to move the inner ends ends of said dogs to penetrate or engage the hose 3 and thus prevent the hose 3 trombe# ing Jforced oft of the member 1 by pressure ofthe operating Huid passing through said member and through the hose. dogs 6 areV forced into engagement with the `hose, by vpressure ot the levers112 upon the dogs '6, the inner ends of said levers project inwardly suliiciently 'tar to prevent the bushing S from being propelled past the levers, the inner ends of said levers catching and holding the bushing. y

With the form of the invention shown in Figs. 3 and 5 the member 1'is adapted to be screw-threaded into, or connected by a pipe line` to, the source of fluid supply and the hose 3 is connected to the riveter or other ma `chine to be driven bythe fluid. It may be n assumed, for example, that the fragments of hose shown in Figs. 1 and 3 are parts of the same hose and that `the directionof flow of the fluid' in Fig. 3 isthe same as vin Fig. 1 as In indicated by the arrows designated a. Fig; 3 the pressure of the fluid moves the bushing 8 to the left the same as in Fig. 1.

In practice, the hose 3 will be slipped over the member 1 while the dogs l() are retracted inthe slots Il and then the fluid will be turned on so asv to discharge through the member 1 to op'eratethe" bushing in 'the manner described above, soas to move the dogs (Sinto engagement with the hose and thus prevent the hose from being blown or pulled ofr' vof the member 1.

If two pieces lor sections of hose are to be connected together the form of coupling shown inFig. 1 may be connected by a'union,

not shown, to the form of coupling shown in Fig. 3`or," if desired, the twocoupling mem formed integral with each other. Y

It is understood that the invention `is not limitedtothe exact details lof construction When the i shown in the drawing and described above, but that the invention also includes such changes and modifications as lie within the spirit and scope of the appended claims.

I claim :v V

1. In a hose coupling, a tubular member adapted to be inserted in a hose, and means operative by fluid pressure in the tubular member toengage the hose.

2. In a hose coupling, a tubular member adapted to be inserted .in a hose, a fluidpressure operated member movably mounted in the tubular member', and means operative by movement of the fluid-pressure operated Vmember to engage the hose.

3. In a hose coupling, a tubular member adapted to be inserted in a hose, dogs movably mounted in the tubular member, and means operative by fluid pressureV in the tubular member to force the dogs into engagement with` the hose. f of the dogs 6 inwardly to cause the outer 4. Ina hose coupling, a Vtubular member adapted to bevinserted 1n a hose, a bushing slidable in the 'tubular member, and means operative by movement -ot ,the bushing to engage the hose.

5. 'In a hose coupling, a tubular member adapted to be inserted in a hose, dogs movably mounted in the tubular member, and a bushing slidable in the tubular member and adapted to engage thedogs to force the dogs against the inner face of the hose.

6. In a hose coupling, a tubular member adapted to be inserted in a hose and provided with slots, dogs pivotally mounted in the slots, and means operative by `fluid pressure in the tubular member to engage one end of the dogs to turn the other end of said dogs into engagement with the hose.

7 In a hose coupling, a tubular memberadapted to be inserted in a hose and provided with slots, dogsl pivotall'y `mounted in the'slots, andv a bushing movably mounted'in the tubular member and adapted to engage one' end of the dogsl to turn the member and having' an internal slanting face at one end adapted to engage thev slant-A ing faces of the dogs.

10. In a hose coupling, a tubular member adapted to be inserted in a hose and prov vided withslots, dogs pivotally mounted in the slots,l means movable inside. of; the ztubuadapted to be inserted in a hose, hose-engag-- lar member by fluid ressure, and means engagable by the {mld-pressure operated means to move one end 0f the dogs inwardly.

11. In a hose coupling, a tubular member adapted to be inserted in a hose'and provided with slots, dogs pivotally mounted in the slots, a bushing movable inside of the tubular member by fluid pressure, and levers pivoted in the slots and having one end in the path. of travel of the bushing and the other end engagable with one end of the dogs.

12. In a hose coupling, a tubular member having slots and adapted to be engaged by a hose, hose-engaging members movably mounted in the slots, and .means to force laid hose-engaging members against the ose.

13. In a hose coupling, a tubular member having Slots and adapted tovbe inserted in a hose, 'hose-engaging members movably mounted in the slots, and means to force said hoseengaging members outwardl against the inner face of thefhose.

14. In a hose Coupling, a member engagable by a hose, members movably mounted in the Erst-named member, and means to force the movable membersy against the hose to hold said first-named member, and hose assembled. y'

Signed at Los Angeles, California, this 27th day of June, 1919. .n

WILLIAM E. SANDERSON. Witnesses:

GEORGE H. HILES, L. BELLE WEAVER. 

